The shoe department placed an order for two dozen shoes that have a list price of $300 each, with trade discounts of 30%, 10%, and 5%. The supplier's price schedule is: a) A minimum order of $3,000: 1% b) An initial order of $4,000: 1.5% c) An initial order of $5,000: 2% d) Payments within 10 days: 2% cash discount